<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <h1>Hello World</h1>
    <div>电商项目</div>
    <button>添加功能</button>
    <button>删除功能</button>
    <button>修改功能</button>
    <button>查看全部</button>
</body>

</html>